Finding the Third Proportional to 2,127,818 and 3,191,691

Step by Step Solution

1. Step 1: Write the proportion equation
   2,127,818 : 3,191,691 = 3,191,691 : x
2. Step 2: Convert to fraction form
   2,127,818/3,191,691 = 3,191,691/x
3. Step 3: Cross multiply
   2,127,818x = 3,191,691 × 3,191,691
4. Step 4: Simplify right side
   2,127,818x = 10,186,891,439,481
5. Step 5: Solve for x
   x = 10,186,891,439,481/2,127,818
6. Step 6: Final answer
   x = 4,787,482.50